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Calculateur de pH — Outil en ligne gratuit

pH à partir de [H⁺], pOH, pKa/pKb

Calcule le pH à partir de [H⁺], pOH ou pKa. Convertis entre pH, pOH, molarité H⁺, molarité OH⁻. Gratuit et sans inscription.

Enter any one value — others compute automatically

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pH calculator

Calculate pH, pOH, [H⁺], [OH⁻] from any one value. At 25°C.

How to use this tool

  1. 1

    Enter any one value

    pH, pOH, [H⁺], or [OH⁻].

  2. 2

    See all others

    Computed automatically at 25°C.

  3. 3

    Classify solution

    Acidic, neutral, or basic.

Frequently Asked Questions

pH + pOH = 14?
Yes, at 25°C. pH = -log₁₀[H⁺]. pOH = -log₁₀[OH⁻]. Water equilibrium: [H⁺][OH⁻] = 10⁻¹⁴.
pH scale
0-6 acidic, 7 neutral, 8-14 basic. Each unit = 10× concentration change. pH 3 has 10× more H⁺ than pH 4.

À retenir

  • pH Calculateur is a free, browser-based calculator tool — ph from [h⁺] concentration, poh, pka/pkb.
  • Non signup, no downloads, no file uploads — your data stays on your device.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use pH Calculateur

  1. Open the tool: Launch pH Calculateur on Outilolis — no account or download needed.
  2. Enter your data: Paste text, enter values, or select a file directly in your browser.
  3. Get instant results: Everything is processed locally — results appear immediately.
  4. Copy or download: Save your output or share it. Bookmark for quick access next time.

pH Calculateur — Quick Facts

Prix
Gratuit — sans limites, sans filigrane, sans paywall
Confidentialité
100% dans le navigateur — aucune donnée n’est envoyée à un serveur
Plateforme
Tout navigateur moderne — desktop, tablette ou mobile
Catégorie
Calculateur Outils on Outilolis
Hors ligne
Works offline after first visit (Progressive Web App)
CaractéristiqueDétails
OutilpH Calculateur
CatégorieCalculateur
Inscription requiseNon
Téléversement de fichierAucun — traité dans le navigateur
Compatible mobileEntièrement adaptatif
CoûtGratuit pour toujours

Why Use pH Calculateur?

You should try pH Calculateur for a quick, private way to ph from [h⁺] concentration, poh, pka/pkb. All processing happens in your browser. Your files and data never leave your device. According to web.dev, client-side processing is the gold standard for privacy.

On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.

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100% Confidentialité. Cet outil fonctionne entièrement dans votre navigateur. Vos données ne sont jamais envoyées à un serveur.